(You can edit this description according to what you see in the graph bellow)
The total distribution shows high dispersion of scores. While the 50% of scores lies between 9 and 15.8, the median is 11. There is a clear positive asymmetry as we se the median close to the first quartile.
(You can edit this description according to what you see in the graph bellow)
There is more 'concensus' (unimodal) in the scores of conceptual questions as usual in this section where as in numerical questions
As we can se in the ditribution it is markedly bimodal. This indicates that we have two groups of students clearly separate by the grades in this examn. The positive asymmetry have been generated by the numerical questions in which the two groups have diferenciated a lot.
Each of the points is one student (when selected the id is shown).
The concept of the score space is that we can see this plot as a space were students locate "phisically" according to their scores. Students can see where they locate in the score space and focus on the sections that allow them to be in a better section of the score space.